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Unformatted text preview: Bronze (copper/tin) – made stronger weapons Iron Joseph Priestley published what oxygen is in 1774 (despite Carl Scheele discovering it in 1773). Compound: mixture of elements that are bonded together, but can be reduced to elements that formed it. Elements: Nickel, Oxygen, Gold Compounds: Water, Salt, Baking Soda Other: Air, Earth, Steel Elements are organized in the Periodic Table. -Naturally occurring are in bold rectangle-Un-bolded are man-made-15-25 needed in diet HW: Worksheet (found on BB) due 1/23-Identify essential nutrient elements of white spaces...
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- Spring '14
- pH, Chemical element, Joseph Priestley, Carl Scheele